NASA NTRS · 19740018541
Differential phase shift keyed communication system
Abstract
A communication system using differential phase-shift-keying (DPSK) transmits and receives binary data without requiring timing or phase reference signals. The system encodes and modulates the data at the transmitter, and decodes and demodulates the data at the receiver, without ambiguity as to the data content.
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Hopkins, P. M., Wallingford, W. M.. 1974-06-11. Differential phase shift keyed communication system. https://ntrs.nasa.gov/citations/19740018541
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